Charles w



(No Model.)

0. W. MODANIEL.

TURNING LATHE.

Patented Jan.7,1890.

171%? wins.-

UNIT D STATES PATENT OFFICE.

CHARLES IVQMCDANIEL, OF LAKE VILLAGE, NEIV HAMPSHIRE, ASSIGNOR OF ONE-HALF TO ARA L. SARGENT, OF SAME PLACE.

TURNING-LATHE.

SPECIFICATION forming part of Letters Patent No. 419,155, dated. January 7, 1890. ,7

Application filed October 3, 1889. Serial No. 325,922. (No model.)

To all 2071,0112, it may concern: upward from the part B through a curvilin- Be it known that I, CHARLES IV. MODAN- ear slot 1), formed for this purpose in the part IEL, a citizen of the United States, residing B, and a nut G, threaded to fit the said stud at Lake Village, in the county of Bellinap F, may be set down upon said part B, and 55 and State of New Hampshire, have invented tlius set or fix the one part at a desired angle certain new and useful Improvements in with the other. Turning-Lathes, of which the following is a In order to readily determine the angle at specification. which the part B is to be placed upon the This invention relates to various turningpart B, the former maybe graduated, as seen 60 1o lathes; and the object of the invention is to in the drawings, anda suitable arm or pointer provide means for holding the work, whereby II placed upon said stud Fin any convenient cylindrical bodies maybe turned just as permanner. fectly tapering as it straight. The tail-stock is composed of three parts The invention consists in the novel conviz., the base I, which is capable of longi- 65 struction of the head and tail stocks so fully tudinal movement upon the lathe-bed, an inset forth in the following specification and termediate plate-piece J, capable of lateral claims, and clearly illustrated in the accommotion uponsaid base I, and the swivel-piece panying drawings, forming an inseparable K, which in the drawings is shown to be swivpart of the same, of whicheled at L directly under the center point on of 70 Figure 1 is a perspective view of a lathe the spindle M, which may be moved longiembodying my improvements. Fig. 2 is a tudinally within its bearings towardor away general plan view of the same. Fig. 3 is a from the head-stock by means of a suitable vertical section taken through the tail-stock hand-wheel N in the ordinary manner. After near its center. Fig.4 is a similar view taken having placed the swivel piece K at any de- 75 at a point forward of the center, or at that sired angle relative to the plateJ a cap-screw side nearest the head-stock. Fig. 5 is a plan P, or its equivalent,passing through a curviof a portion of my improved tail-stock, and linear slot 75, formed in said swivel-piece K Fig. 6 is an enlarged sectional plan view of and entering a threaded opening in said plate the head-stock. J, may be made to hold the two parts firmly 8o 0 Similar reference letters indicate cone in the desired position.

spondin g parts throughout the various views. Various means may be devised for securing All such parts of a lathe as the tool-rest, the base I and interposing piece J to the screw-cutting attachment, and their operating lathe-bed, and also for conveniently adj ustgearing have been omitted from the drawing the latter upon the former to any re- 85 3 5 ings, as they have no connection with my inquired position. Upon the under side of the vention. plate J are provided tongues j, and these are In referring to the various parts by their fitted to planed ways 1', formed upon the up- 1etters,A represents the lathe-bed which is per side of the base I, thus permitting the provided with the ordinary planed ways a a, former to move laterally upon the latter. To 90 upon which are mounted the head and tail adjust the one either centrally or to either stocks, the bases of which are provided with side of the longitudinal center of the other, grooves fitting said planed ways, as shown. I form a projection j upon. the under side of The head-stock is composed of two parts the plate J, and when the said plate is placed viz., the base B and the swiveled part B-in in the desired position screws 1, which are 5 which is mounted an ordinary cone-pulley C threaded to horizontal openings formed in and its mandrel or center spindle D. The either side of the base I, may be turned in, pivot-connection for the two parts B B may so as to bear upon the sides of said projection be placed at various points as desired; but in 7"; or, if preferred, a shaft may be mounted the drawings it is shown at E directly under: in the said base, instead of said screws I, I00

the center point (Z of the spindle D, and a having its inner end threaded to fit athreaded clamping-bolt or threaded stud F may pass opening in said projection 7, and by means of a wrench or its equivalent said shaft may be rotated, so as to produce the desired tad? j ustment of the plate J. Both parts I J may be conveniently clamped down to the bed A by means of a vertical rod R, provided with a suitable head 7, fitting a T-groove 7' formed transversely in the under side of said plate J, said rod having hearings in the part 2" of the base I, and a sliding block S, fitted within the said bed, and a hand-clamp may be attached to the lower end of said rod, comprising a cam motion; or said lower end may be threaded and a suitable hand-screw T fitted thereon underneath the sliding block S,'as showninFig.4.

In Fig. 2 a piece of Work is shown pearwhen turning a tapering shaft-or cylin der; the tool stock or carriage for which will 1 be moved in the ordinary with the lathe-bed.

Both head and tail stock may be provided with suitable graduationsgby which the'live manner parallel and i dead spindles, respectively, D and. M;

shall maintain a perfect alignment-when set on an'an-gle or out of line with the lathe-bed as perfectly as straight work. I

Having described my improvements, What I claim,

A,and thus tapering Work may be performed 7 bed.

their in dotted lines and the point of a tool as it would tip I and desire to secure by Letters Pat- 2. The herein-described means for turning tapering shafts and the like, consisting of a swiveled head-stock and a swiveled and laterally-adjustable tail-stock.

3. In a turninglathe, a head-stock com-.

pivoted 'to said intermediate plate mounting the dead-spindle, all substantially for the purpose set forth; k .i at. In" a turning-latheja head-stock'composedof two parts; thefone'pivoted to the other, a tail-stocky-composed of three parts, whereby said tail s'tock is'iadju'stabl'e longitudinally uponthelathe-bed and transversely and "at an :angle' therewith, and means, comprising graduations upon the said head and tail stocks, for'maintaining proper alignment of the live anddead spindles whilethe same are at an angle or out of line with the lathe- In testimony whereof I affix my signature in' presence of two witnesses.

U CHARLES W. MCDANIEL.

Witnesses: 7'

ARA L. SARGLE'NT, GEO. G. ROLLINS.- 

